What is the first action to take in the case of an engine space fire?

In the event of an engine space fire, securing the power is the critical first action to take. This is essential because when engine power remains on, it can exacerbate the fire. Fuel lines may continue to leak, and electrical systems can contribute to the spread or intensity of the flames. Turning off the power not only helps to mitigate the risk of further ignition but also allows for a safer environment to assess the situation and tackle the fire effectively.

Once the power is secured, other necessary actions can follow, such as sounding an alarm to alert crew members, evacuating the area if needed, or attempting to extinguish the fire if it is safe to do so. However, without first securing the power, any attempted firefighting efforts could be futile or even dangerous. Thus, the priority is placed on controlling the sources of power that could complicate the efforts to manage an engine space fire.